All my PXE environment works 100% ok.
A good start then

Just thinstation refuses to work.
I think some parameters need a " or a , ... something like that.
So I'd like to get help from someone who has it working to compare files or to look at my files and say: Ohh, you forgot put IP address inclosed in "

Ohh..... you seem to have forgotten....
NET_REMOTE_ACCESS_FROM="192.168.13
Something missing here perhaps ?
Should that be "192.168.13.0" or something more specific ?
I don't have thinstation running like this myself - I just use PXE booting
I did have a quick google on the error and seems to be usually the config files. Just need to go through them with a fine toothcomb.